Portable hair dryer



FIG. 1 is a front elevational view of a portable hair dryer showing mynew design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevation thereof;

FIG. 4 is a right side elevation thereof; and,

FIG. 5 is a top plan view thereof.

The ornamental design for a portable hair dryer, as shown and described.